Center-punch gage.



A. D. GOUGHNOU R. CENTER PUNCH GAGE. APPLICATION FILED MAY 31, 1011,

Patented Sept. 12,1911.

throwe PAEEN FFKQEQ .A.NDR-EW I). GOUGHNOUR, OF-CON EMAUGH,EENlilSYLVANIA.

CENTER-PUNCH GAGE.

To all un'mm it may concern:

Be it; known that: l, Axnnew D. Gonorrsona, a citizen of the UnitedStates, and a resident of L oneinaugl'n in the county of tlainliiria andState of Pennsylvania, have invented certain new and usefulImprovemerits in Center-iiiuich Gages, of which the t'ollowing is a fulland clear specification, reference being had to the accompanyingdrawings in which- Figure 1 is a ')erspe'ctive "iew of my improveddevice showing it placed on a plate as in actual use; and Fig. 2 avertical transverse Pection thereof.

The object of this invention is to provide a simple implement foraccurately punchiuq'. center holes in 'n'ietal t'or drilling as moretully hereinafter set forth.

The device consists of a pair of support-- ing blocks a rigidlyconnected by a pair of separated parallel bars 7) one or both of whichon their upper surfaces are provided with marks indicating a linarmeasure. (1, the measure or scale beginning at a point coincident withthe inner face of one of the hloclis (I and terminating preferablyco-ineidcnt with the inner face cl: the.oth.erhloclc. Hlidahly mountedon the liars I) is an interuu-diate leg or support 1], the upright men!her 1: ol this leg being provided on each ol its side edges with a pairof lugs which embraces one of the hars I), thus holding thissupplemental leg slidahly on the frame. .letwecn this supplemental leg7) and the l g 0, at the Zero end ol the scale slidahly zuountml in anysuitahle manner a punch which is supported in a vertical positionandwhich when struck liy a han'uuer will he caused to punch a hole in thepiece of work supported below it. At the back edge of Specification ofLetters 2mm.

Application filed May 31, 1911.

Patented. Sept, t2, 1% 1.

Serial No. 630,522

the derice, on the rear one of the bars 7) is mounted a level h, of anysuitable construction. 7

One way of using the device is shown in Fig. 1, in which the leg (Z isadjusted to a point nine inches from the zero end of the scale ormeasure and the punch is adjusted to a point hall way hctween, suitablescale marks 2' being provided on the punch supporting block to assist:in locating the punch at the proper point on the scale. \Vhcn the partsare thus adjusted they are in position to punch the l'iolesexactlymidway between the points nine inches apart; on the work plate and bythe use of the level the punch can he always i'i'laintained in anexactly verti 'al position with respect to the worl; plate so thatthepunched holes will be exactly perpendicular to the face of the plate andthus properly direct the tool in drilling out the holes.

Having thus described my invention, what; I claim as he i and desire tosecure by Letters latent, is-

In a device of the class set forth, the combination of a slide-wayprovided at each end with a rigid sumaorting block and on its upper facewith a linear scale extending from one block toward the other hloclg asupplemental leg or marker slidahly mounted on the slide-way, and apunching device slidahly mounted on the slide-way between said slidahleleg and the zero end of the scale.

In testimony whereof I hereunto allix my signature in the presence ottwo witnesses.

ANDREW l). GOULHINOUR.

Witnesses l. Emu, Oonu, J12, "l. EAnL Conn.

